baber/WOPTO huggingface dataset:
Patent CA-2212191-A1 (CA)
Inventor: SJOLANDER BO THOMAS
IPC: B23B31/00
Filed: 1996-02-05
Abstract: The present invention relates to improvements in devices for use as grinding cups (30) for grinding the hard metal pins or working tips of drill bits and more specifically, but not exclusively, for grinding the tungsten carbide cutting teeth or buttons of a drill head and the means for detachably connecting the grinding cups (30) to the grinding machine (10). The grinding cups (30) have top and bottom surfaces (33, 35) and consist of a lower grinding section (31) and an upper body section (32). The grinding section (31) is formed from a material capable of grinding the tungsten carbide button bits such as a metal and diamond matrix. The peripheral edge (35) in the bottom surface (34) may be beveled to facilitate the removal of steel from the face of the bit around the base of the button during grinding. A centrally disposed convex recess (36) is formed in the bottom surface (34) of the lower grinding section (31) having the desired profile for the button to be ground. The upper body section (32) has a centrally disposed cavity (37) formed in the top surface (35) of the grinding cups (30). This cavity is sized and shaped to permit the grinding cup (30) to be detachably connected to the drive member (21) of a grinding machine (10) and rotated during the grinding operation. One or more passageways (40) connect the floor (43) of the cavity (37) in the top surface (35) of the grinding clip (30) with the convex recess (36) in the grinding section (31) to permit a coolant, preferably water, optionally mixed with cutting oil, to be provided to the surface of the button during grinding, through one or more outlets (44).
Patent CA-2217335-A1 (CA)
Inventor: DOUGLASS JOHN M
IPC: B60S9/04
Filed: 1995-04-28
Abstract: Dispositif (12) servant à maintenir un châssis d'une remorque à une hauteur constante et comprenant un élément rotatif (60) monté sur le cadre (14, 50) de la remorque et conçu pour se déplacer entre une position rentrée et une position sortie. En position rentrée, l'essieu (16) et la roue (18) de la remorque sont libres de se déplacer à l'intérieur des limites de la suspension. En position sortie, l'élément rotatif (60) limite le déplacement relatif entre le cadre (14) de la remorque et la suspension, afin de diminuer les risques d'écart de la remorque.
Patent CA-2218252-A1 (CA)
Inventor: DANTLGRABER JOERG
IPC: B61F5/02
Filed: 1996-03-16
Abstract: L'invention se rapporte à un appui sur châssis pour caisse de wagon (11), et plus particulièrement sur le bogie (10) d'un véhicule ferroviaire, avec support oscillant (12) entre le châssis (10) et la caisse de wagon (11). Ce support oscillant prend appui sur le châssis (10) au moyen d'une articulation inférieure, la caisse de wagon (11) prend appui sur ce support au moyen d'une articulation supérieure sous forme d'articulation de contact à surface courbe. Pour réduire l'usure de l'articulation supérieure, le support oscillant (12) comprend un premier élément d'appui (13) et un second élément d'appui (14) monté entre le premier élément d'appui (13) et la caisse de wagon (11). En outre, une surface portante (30) de la caisse de wagon (11) repose sur une première surface portante (27) du deuxième élément d'appui (14), et une deuxième surface portante du second élément d'appui (14) repose sur une surface portante (32) du premier élément d'appui (13). L'une au moins des deux surfaces portantes (27, 30, 28, 32) en contact est de forme cylindrique, et la face de contact entre une paire de surfaces portantes est de forme linéaire. Enfin, les génératrices d'au moins une surface portante cylindrique (32) entre le premier élément d'appui (13) et le second (14) sont définies de manière à éviter toute rotation et sont perpendiculaires aux génératrices d'au moins une surface portante cylindrique (27) située entre le second élément d'appui (14) et la caisse de wagon (11).
Patent CA-2219521-A1 (CA)
Inventor: FREDETTE BERNARD
IPC: A63B21/16
Filed: 1997-12-30
Abstract: A horizontal bar exercising device for use in a room having a floor and a ceiling the device comprising first and second support posts designed to extend vertically between the floor and ceiling and a horizontal bar having first and second ends interconnected with the first and second posts respectively by sleeve members, the sleeve being slidable along the first and second posts by means of friction reducing means interposed therebetween to minimize binding between the sleeves and posts. The device preferably includes extension arms located at the upper distal end each of the extension arms having a pressure rod to indicate a preset pressure to be applied to the ceiling.
Patent CA-2220410-A1 (CA)
Inventor: GUERIN WILLIAM
IPC: F23D14/58
Filed: 1997-11-03
Abstract: The invention relates to a flame retention device (1) and to a gas mixing burner (80) equipped with such a device. This device incorporates in its construction a compressed gauze of interwoven flexible metal wire or wires for said gases to flow through it, and takes the form of a ring (2). The device is constituted by a substantially coaxial stack of at least two of said rings (2). Such a device may in particular be mounted on cylindrical domestic burners.
Patent CA-2226866-A1 (CA)
Title: Multiplexeur video
Inventor: BAUERLE DAVID WILLIAM
IPC: H04N7/18
Filed: 1996-07-10
Abstract: Le contrôleur du système vidéo (200) insère des impulsions de synchronisation sur une ligne (100) de caméra vidéo, qui crée une image de vidéo sur la ligne de caméra vidéo. Le contrôleur du système vidéo insère également un code caméra dans la période de vidéo active d'une ligne non visionnée de l'image de vidéo. Une pluralité d'unités de caméra (301 - 304) sont connectées à la ligne de caméra vidéo et utilisent les impulsions de synchronisation placées sur la ligne de caméra vidéo afin de rester synchronisées avec les autres unités de caméra. Lors de la détection d'un code caméra particulier sur une ligne de caméra vidéo, l'unité de caméra qui correspond avec le code caméra particulier insère un signal d'image vidéo dans la période de temps de la vidéo active de la ligne de vidéo visionnée pour l'image de vidéo contenant ce code caméra particulier. Le code caméra particulier retourne au contrôleur du système vidéo qui reçoit l'image de vidéo contenant un composé des impulsions de synchronisation du contrôleur du système vidéo et du signal d'image vidéo. Le contrôleur du système vidéo peut alors transmettre un signal d'image vidéo à un enregistreur ou affichage vidéo (400).
Patent CA-2228091-A1 (CA)
Inventor: LESKINEN KIMMO
IPC: A23G4/00
Filed: 1996-07-26
Abstract: A preparation used in dental care to protect the teeth, which preparation is anhydrous, with the possible exception of crystal water, and by structure, for example a powder, solid tablet or other anhydrous compositions. The preparation contains a remineralising component, pH buffer component, xylitol and fluoride. Due to the effect of the water contained in the saliva or water added otherwise, the compounds in the preparation react with each other so as to bring about both a remineralisation reaction correcting cavity formation in the teeth, and a pH buffering reaction prevention cavity formation in the teeth.
Patent CA-2230852-A1 (CA)
Inventor: GREEN DOUGLAS R
IPC: A61P19/02
Filed: 1996-08-30
Abstract: The present invention provides a novel method for the treatment of cellular accumulation in chronic inflammatory diseases such as rheumatoid arthritis. The method includes gene delivery and gene expression that is capable of enhancing apoptosis of accumulating cells and those cells which recruit accumulating cells. Also provided are diagnostic methods for detecting cellular accumulation diseases.
Patent CA-2230978-A1 (CA)
Title: Method and apparatus for user authentication
Inventor: KHELLO ROBERT
IPC: G06Q20/40
Filed: 1996-09-18
Abstract: A user authentication service is disclosed which is both highly secure and user friendly. To access a particular service, a user simply enters a personal identification type number (PIN) using a portable terminal devices which encodes the PIN. More specifically, a character position of the user's PIN is determined, and a random code having a length selectable at each service transaction by the user is generated. The user's PIN is encrypted using one of plural available, pseudo-randomly encrypting algorithms to provide an encrypted PIN. The encrypted PIN is then combined with the code at the determined position before being transmitted over a communications network.  When received, the encoded PIN is decoded using an analogous procedure to determine if the user is authorized. A plurality of security levels are provided with each level having a plurality of encryption algorithms and with each increasing level providing encryption algorithms of increasing complexity and sophistication. A user may also change a current PIN from the portable device easily and securely without having to contact a service center.
Patent CA-2232564-A1 (CA)
Title: Endosseus single-tooth implant with anti-rotation device
Inventor: KIRSCH AXEL
IPC: A23L7/109
Filed: 1996-07-31
Abstract: The invention concerns an endosseus single-tooth implant for a fixed dental prosthesis, the implant comprising: a substantially cylindrical basic body which can be inserted into a bore in a jaw bone and has a blind hole open towards the coronal end thereof; a spacer sleeve which can be placed on the coronal front edge of the basic body; an implant post which can be inserted into the blind hole in the basic body and connected thereto and penetrates an internal bore in the spacer sleeve; a connection device for securing the spacer sleeve on the basic body such that said sleeve cannot rotate; and a securing head for the dental prosthesis. The implant is characterized in that the securing head is formed by a coronal hollow end region of the spacer sleeve; the coronal end of the implant post is disposed cervically below the end region; and, in order to secure the dental prosthesis, a securing screw, which penetrates an opening in the peripheral wall of the end region, can be screwed into an insert nut which is provided with a threaded bore extending perpendicular to the longitudinal centre axis of the spacer sleeve and is disposed in the end region.
Patent CA-2233512-A1 (CA)
Title: Solvent recovery apparatus and method
Inventor: DUNN KENNETH OSWALD
IPC: B01D36/04
Filed: 1998-03-30
Abstract: A solvent recovery apparatus for recovering low volatility solvent from a washing fluid slop includes a settling system and a filtering system. The settling system includes one or more settling stages and an off take by which settled, re-usable solvent may be recovered. The filtering system uses a single filter press to filter batches of wastewater, with solids, and batches of solvent sludge, with solids, such that cleaned wastewater filtrate may be discarded, benign removed solids may be dried and sent to landfill, and solvent filtrate may be returned to the input end of the solvent recovery apparatus for re-processing. The solvent recovery apparatus can use a two stage settling system which permits an initial separation of most of the wastewater, and a secondary settling of a solvent rich portion of the slop. The secondary settling can be performed with a system of alternating settling tanks in which one tank is allowed to settle while another is being filled. The apparatus operates at room temperature and can be assembled on a single skid for ease of installation.
Patent CA-2234433-A1 (CA)
Inventor: VONNER DANIEL
IPC: C23D3/00
Filed: 1998-03-19
Abstract: Sheet steel is pickled in acid and then given a coating which protects it against corrosion, serves as a lubricating agent during subsequent shaping and is removed by degreasing before nickel-plating and enamelling of the final article. When applied to specific steel sheet 1 mm thick, the coating will withstand 10 cycles of heat and humidity according to DIN50017 without the steel showing any sign of rust. Its lubricating ability is such that a pressed flat bottomed dish 90 mm in diameter, pickled and then coated may be further pressed to a depth of 25 mm by a punch of diameter 50 mm moving at 1.6 mms/sec without rupture up to a force of 65 kN. The coating can be completely removed by immersion in a bath containing 35 g/l sodium metasilicate, 16 g/l trisodic phosphate and 2 g/l nitriloacetic acid at 60 degrees C for 3 mins, followed by immersion in water for 1 min and spraying therewith for 0.5 min.
Patent CA-2234458-A1 (CA)
Inventor: SMITH RICHARD R
IPC: D06M15/576
Filed: 1996-09-03
Abstract: This invention provides compositions for treating fibrous substrates to render those substrates durably repellent to water and oil and durably resistant to dry soil comprising a fluorochemical polymer formed by: (a) reacting a tri- or higher order isocyanate with a fluorochemical alcohol; (b) reacting the resulting product with an amount of water sufficient to react with between 5 and 50 % of the isocyanate groups present in the product compound; and (c) thereafter reacting the product with a difunctional poly(oxyalkylene)containing material. The present invention also provides a method of treating fibrous substrates to render those substrates durably repellent to water and oil and durably resistant to dry soil comprising application of the aforementioned composition to a fibrous substrate with one or more hydrophilic anti-staining compounds such as acrylic and methacrylic acid polymers and copolymers, sulfonated phenol-formaldehyde resins, and styrene-maleic anhydride polymers and copolymers, said application of the composition taking place either coincident with or following application of the hydrophilic antistaining compound or compounds to the substrate. Fibrous substrates treated according to this method and fibrous substrates treated with the aforementioned compositions are also disclosed.
Patent CA-2237644-A1 (CA)
Inventor: DESCHAINE STEPHEN A
IPC: H04Q11/04
Filed: 1996-11-13
Abstract: A multi-host subscriber loop (10, 70) includes N central office terminals (22-26, 78) coupled to a local exchange (20, 76), where one of the N central office terminals (22, 110) is directly coupled to all other central office terminals (24-26, 112-114). M remote terminals (40-46, 100-104) are coupled to a plurality of telephone service subscribers. A single network facility (16, 76) is coupled between the M remote terminals and N central office terminals.  The single network facility concentrates subscriber traffic, control information and associated signaling onto one message structure (60, 140).  Messages in this message structure are transmitted between the remote terminals and central office terminals. The message structure includes a plurality of time slots, a first predetermined number of the time slots being allocated to N control channels, at least one time slot being allocated to associated signaling, and remaining time slots being allocated to subscriber traffic.
Patent CA-2238388-A1 (CA)
Title: Aromatic thioether acylation method
Inventor: GILBERT LAURENT
IPC: C07C319/20
Filed: 1996-11-08
Abstract: PCT No. PCT/FR96/01763 Sec. 371 Date Aug. 3, 1998 Sec. 102(e) Date Aug. 3, 1998 PCT Filed Nov. 8, 1996 PCT Pub. No. WO97/17324 PCT Pub. Date May 15, 1997The present invention relates to a process for the acylation of an aromatic thioether. In its preferred variant, the invention resides in a process for the condensation of acetic anhydride or acetyl chloride with thioanisole. The process for the acylation of an aromatic thioether according to the invention is characterised in that it consists in reacting said thioether with an acylating agent chosen from the group formed by the halides of carboxylic acids and the anhydrides of carboxylic acids, in the presence of an effective quantity of an acid zeolite.
Patent CA-2239902-A1 (CA)
Title: Monomeric units useful for reducing the modulus of low water polymeric silicone compositions
Inventor: OZARK RICHARD M
IPC: C08F30/08
Filed: 1996-11-12
Abstract: Monomeric units useful in reducing the modulus of low water polymeric silicone compositions are disclosed. Low water compositions including the subject monomeric units are especially useful in the formation of biomedical articles such as low water silicone contact lenses. In formula (I), A is an activated unsaturated group; R and D independently are alkyl, alkylene or haloalkyl groups having 1 to 10 carbon atoms wherein said carbon atoms may include ether linkages therebetween; M is hydrogen, fluorine, or an alkyl group; R1, R2, R3 and R4 are independently selected from: alkyl or haloalkyl groups wherein ether linkages may be included between carbon atoms; siloxane groups; and carbocyclic ring groups having from 6 to 18 carbon atoms; m is an integer from 1 to 500; n is an integer from 1 to 20; x and y are 0 or 1; z is 1 or 2; and x + y + z = 3; so long as at least one of R1 or R2 is an alkyl group having from 1 to 10 carbon atoms.
Patent CA-2240421-A1 (CA)
Inventor: NEUDERT NIKOLAUS
IPC: G21F9/30
Filed: 1996-12-02
Abstract: The invention relates to a process for recycling metal parts which have been contaminated by radioactive elements, especially alpha-emitters. A melt and slag are formed from the metal parts and the slag is removed. Before the melt and slag are formed, the radioactive elements must be oxidised. To that end, the contaminated metal parts can be exposed to an oxygen-containing atmosphere at a temperature below the melting point of the metal parts.
Patent CA-2240444-A1 (CA)
Inventor: FITZGERALD PATRICK HENRY
IPC: C08L67/00
Filed: 1996-12-17
Abstract: Compositions and processes for imparting repellency to low surface tension fluids in thermoplastic polymers, said compositions containing compounds of formulae RfSO2(CH2)nC(O)2OR, RSO2(CH2)nC(O)ORf and RfSO2R wherein Rf is F(CF2)x-(CH2)m wherein x is 4 to 20 and m is 2 to 6, R is a saturated aliphatic hydrocarbon with an average carbon chain length of 12 to 66 carbons;  and n is 1 to 4 are disclosed.
Patent CA-2244068-A1 (CA)
Inventor: SWINLEY GEORGE
IPC: F16D1/08
Filed: 1997-02-06
Abstract: A locking device for clamping onto a shaft (10) is composed of a collar (19) and a ring (3, 17) fitted onto the shaft (10). The collar (19) has an end wall (25) and an axial region (18) extending over an outer inclined contact surface (20) of the ring (13, 17). The ring (13, 17) and the collar end wall (25) have inner surfaces (9, 22) confronting the outer surface of the shaft (10) which are separated by sliding radial surfaces (50) of the collar (19) and the ring (13, 17). Screw threaded elements (21) set in threaded bores (6) in the axial region (18) of the collar (19) can be tightened against the outer surface (20) of the ring (13, 17) to cause contact zones (24, 26) of the inner surfaces (9, 22) to exert clamping force on the shaft (10) at diametrically opposed positions. The screw-threaded elements (21) and the bores (6) adopt non-radial dispositions relative to the axis of rotation (P).
Patent CA-2250364-A1 (CA)
Inventor: LAUTENSCHLAGER HANS
IPC: C09K8/88
Filed: 1998-10-15
Abstract: The gas flow in water-containing natural gas wells and natural gas storage wells is improved if a homogeneous phase comprising a water-repellent, solvolysis-resistant active compound is injected into the water-bearing rock.
Patent CA-2251296-A1 (CA)
Inventor: MURELLO JOHANNES
IPC: F41A25/10
Filed: 1998-10-21
Abstract: The invention concerns a damped spring mechanism for a firearm, preferably an automatic small firearm with a spring element mounted between two components (11, 19) that can approach each other from a rest position and is designed as an elastomer body (17) that lies against components (11, 19) under prestress in the rest position.      The elastomer body preferably consists of porous and therefore compressible elastomer and fills a cavity that is reduced during approach of components (11, 19). (Figure 1)
Patent CA-2252469-A1 (CA)
Inventor: WEAVER DONALD F
IPC: A61K38/00
Filed: 1997-04-23
Abstract: The present invention provides methods and compositions for enhancing an effect or effects of a neurotrophin, preferably, but not limited to, enhancing the growth and survival promoting properties of neurotrophins. The cytoplasmic region of the common neurotrophin receptor (p75NTR) (rat, human, chick) contains a putative membrane-associating domain implicated in intracellular signalling. A peptide (R3) identical to this domain (p75NTR367-379) and various analogues of this peptide displayed circular dichroism spectra in aqueous and non-polar environments identical to the amphiphilic tetradecapeptide mastoparan (MP), and were internalized by PC12 rat pheochromocytoma cells. The R3 peptide enhanced neurite growth in PC12 cells, chick embryo primary sensory neurons, and fetal rat primary sensory neurons in vitro in the presence of sub-saturating concentrations of NGF. Peptide analogues of R3 not faithful to the distance and angular relationships of ionic groups, and the putative amphiphilic structure of p75NTR367-379, while still providing some enhancement, nevertheless displayed reduced potency to enhance NGF-mediated neurite growth. The common neurotrophin receptor p75NTR activates and translocates the nuclear transcription factor NFkB and displays pro-apoptotic effects similar to other members of the TNF receptor superfamily. A peptide mimic of the amphiphilic domain 367-379 of p75NTR that enhances TrkA mediated neurite growth by NGF, was used to affinity purify cytoplasmic proteins from PC12 cells. Isolated proteins contained a predominant species with an apparent molecular weight of 65 kDa. The affinity purified 65 kDa protein, as well as a protein of similar molecular mass from crude cell extracts, were identified by immunoblotting with antibody to NFkB. The 65 kDa species was chemically cross-linked to the radiolabeled analogue of the peptide mimic of p75NTR and immunoprecipitated by antibody to NFkB. These observations, taken together with the finding that a p75NTR-selective NGF antagonist blocked mediated neurite growth in limiting NGF conditions, support the view that p75NTR participates in neurite growth via a signaling pathway involving the translocation of NFkB.
Patent CA-2253606-A1 (CA)
Title: Private branch exchange
Inventor: NISHIDA TOSHIO
IPC: H04Q11/04
Filed: 1998-03-13
Abstract: A private branch exchange comprising means, including at least an extension terminal, for connecting the extension terminal to a communication network, means for transmitting to the communication network a call including information relating to a caller number, when a transmission call is made from the extension terminal, means for sending, when a call is received from the communication network and the call includes information on a number, the call to the extension terminal corresponding to the called number, memory means for storing information on a predetermined number which is preconfirmed to function as a called number for callback, determination means for determining, when a call has been received from the extension terminal, whether or not the predetermined number is obtained, which corresponds to a caller number received from the extension terminal or a caller number corresponding to the extension number, with use of the information stored in the memory means, and means for employing, when the acquisition of the called number has been determined by the determination means, the predetermined number as a caller number and transmitting transmission call information including information relating to the caller number to the communication network.
Patent CA-2257803-A1 (CA)
Title: Non immunosuppressive antifungal rapalogs
Inventor: YANG WU
IPC: A61K31/435
Filed: 1997-07-14
Abstract: This invention concerns derivatives of rapamycin and their antifungal uses.  Also disclosed are materials and methods relevant to the identification of non-immunosuppressive antifungal rapamycin derivatives.